Improvement in hand-stamps



UNITED STATES PATENT FFICE.

SIDNEY S. TURNER, OF VVESTBOROUGH, AND COLLINS STEVENS AND GEORGE M. STEVENS, OF BOSTON, MASSACHUSETTS, ASSIGNORS TO THEMSELVES AND EDWARD B. PENDLETON, OF WESTERLY, RHODE ISLAND. I

IMPROVEMENT IN HAND-STAMPS.

Specification forming part of Letters Patent No. 117,832, dated August S, 1871; antedated July 27, 1871.

To all whom it may concern:

Be it known that we, SIDNEY S. TURNER, of' Vestborough, in the county ofl Vorcester, and COLLINS STEVENS and GEORGE M. STEVENS, of Boston, in the county of Suffolk and State of Massa-chusetts, have invented a certain new and useful Improvement in Auton'latic Stanlps, of' which the following is a complete specification:

- The nature of my invention consists in combining a series of wheels, said wheels having upon their peripheries letters and figures to indicate minutes, hours, days, months, Ste., with clockwork, so that at all times the proper date will be presented for stamping.

Figure l is a perspective view of the mcchanical part ofnly invention. Fig. 2 is a view oi' the movement. Fig. 3 shows in detail a device for imparting motion to the hour stan1pwheel. Fig. 4 shows the stamping device.

A, Fig. l., is the f'ace of an ordinary clock, with hands, &c., of which D in Fig. 2 represents the usual movement. This movement may be driven by weights or springs, and may be varied in stren gth and proportion to suit the style of stamp to be made. B, Figs. 1 and 2, is a large wheel, upon the periphery of' which are aflixed figures indicating numbers, from 1 to 60, and are intended to denote minutes of' the hour.' Upon the wheel O are affixed letters and figures to denote the hours ofthe day. The wheels K, Fig. 2, have upon their peripheries letters and figures to indicate the day ofthe month, the month, and the year.

An intermittent motion is given to the wheel B by the following device: B* is a-n arm at tached to the minute-spindle B6. This spindle B6 makes a complete revolution in one hour, and carries with it the arm B4. The arm B4 is connected with the wheel B by the pin T, Fig. 1, in Such a manner that it may have a limited motion independent of the wheelthe amount of' this motion being governed by the slot at T in the arm, and amounts to a sixtieth of a revolution. S is a spring attached to the arm B4, and pressing against the pin S in the wheel B so that as the arm B4 advances, it, acting through the spring S, will bring a pressure on the pin S and have a tendency to revolve the wheel B. The wheel B is prevented from turning by the pawl B2 which is attached by the standard B1, and comes in contact with the fixed ratchet B3, Fig. 1. This pawl B2 has a lifting-pin B5, projecting f'rom its outer end. This liiting-pin B5 rests upon the cam end of the arm B, the end of the arm being so shaped as to form a segment of." a cam of such character that when the pin B5 is acting upon one part of it, it will allow the pawl B2 to catch on the teeth of the rixed ratchet B, but as the arm advances, sliding under the pin B5, it will cause it to rise, and, liftin the pawl B2 out of contact with the ratchet B, allow the wheel B to be advanced by the spring S until the pawl B2 falls into the next tooth. This action causes the pin B5 to advance to the forward or lower edge of' the cam end of' the arm B, and then to await the repetition ofthe action above described. This intermittent motion ofthe wheel B takes place once per minute. Thus at each minute a dif'f'erent number is presented to the action of stamp. The wheel C, having upon its .periphery the houranarks, is moved forward once an hour by the arm O6, Fig. 3, which is attached to the common or hour-pinion C5. This arm O acts on the wheel O through the spri 11 g O7. The let-ofi' for the hour-wheel O consists in the pawl O1, Fig. 1, which acts upon a ratchet on the wheel (l, shown in Fig. 2. The pawl G4 is raised by the arm O2, Fig. 1, which is acted upon by the pin C1 in the wheel C. As the wheel O revolves but once in an hour the pin Ol will only act upon the .fn-11102 and pawl C once per hour. Thus the wheel O can move but one notch per hour-that is, at each hour a new number, representing the hour of' the day, will be presented to the stamp. The wheels K, carrying numbers and letters to indicate days of' the month, month, and years, are not automatic, but may be made so by applying to them similar mechanism to that applied to the wheels O and B.

Fig. 4L represents the stamping device, and consists of a colora'ibbon, E', which is placed, as shown, immediately under the wheels B, C, and K, and above the stamping-table H.

The table H is operated by the lever H2, and serves to press the paper to be stamped against the ribbon E through which the number and g- The printin g-Wheels B and C7 Carrying upon ures on the peripheries of the wheel E, C, and K their 1 )e1ipheriescharacters indieatin geg'tinie7 when print7 as in the ordinary hand-stamp. the saine are connected to and operated by eloek- The advantage of my stamp over the ordinary Work, as and for the purpose set forth. one is that the dates are brought into position SIDNEY S. TURNER. automatically and that the exact time to a inin- COLLINS STEV EN S. ute is stamped. A Stamp of this kind can read- GEORGE M. STEVENS. ily be made so that it need he adjusted but once ,Vitnesses: a mouth, or even, if desirable, but once in a year. FRANK G. PARKER, XV@ claim as our inventon- XVILLIAM EDSON. 

